C0308
Motor A/B Circuit Low
C0308 is an OBD-II diagnostic trouble code meaning: Motor A/B Circuit Low. Common causes: open or shorted wiring harness, faulty solenoid. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Unstable idle
- Increased fuel consumption
Causes
- Open or shorted wiring harness
- Faulty solenoid
- Problems with the engine control unit
- Bad contacts in connectors
How to Fix
- Check wiring harness for damage
- Check solenoid resistance
- Check the voltage in the circuit
- Clean or replace connectors if necessary
- Replace faulty solenoid
- Reflash or replace the ECU if necessary
Related codes
Error C0308 by Vehicle Brand
FAQ
What does the C0308 code mean?
C0308 is an OBD-II diagnostic trouble code that indicates: Motor A/B Circuit Low
What causes a C0308 error code?
The most common causes of C0308 include: Open or shorted wiring harness; Faulty solenoid; Problems with the engine control unit; Bad contacts in connectors.
How do I fix a C0308 diagnostic trouble code?
To fix C0308: Check wiring harness for damage. Check solenoid resistance. Check the voltage in the circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0308?
Limited driving only, diagnose soon
How much does it cost to fix C0308?
The estimated repair cost for C0308 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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